marty rossler, that's what i said, all right? ew, larry chalked up marty's dishonesty as an attempt to save his marriage. >> i don't want my wife to be brought into this thing. >> reporter: larry also took a closer look at the idea that marty and lynsie were together at that clothing store after she went missing. >> i flat wasn't there on that day, okay? >> reporter: no one ever found any security video of that, and larry's learned over the years that well-meaning people often get dates wrong. and larry learned a key fact. marty it actually participated in those early searches for lynsie. you eliminated marty fairly quickly, then. >> yes. >> reporter: marty's behavior matched up with that of an innocent person, not with a guilty one? >> that's correct. he is doing what you would do if you were looking for lynsie, he was searching. >> reporter: so larry turned his attention to chris mcamus. guilty or innocent? chris was the last person known to be with lynsie. he told police he drove straight home after dropping lynsie off. and pol